package lezione5;

public class Leaf {
	  
	  int i = 0;
	  Leaf increment() {
	    i++;
	    return this;
	  }
	  void print() {
	    System.out.println("i = " + i);
	  }

	 
	  
	  public static void main(String[] args) {
	    Leaf x = new Leaf();
	    x.increment().increment().increment().print();
		
	   
	  }
} 
